Last month, though, Glenn Greenwald's partner, David Miranda, was detained at Heathrow airport for almost nine hours, while on a journalistic mission paid for by the Guardian. His electronics were seized, and he was forced to hand over his social media passwords under the threat of imprisonment. He was detained under the UK Terrorism Act – for an act of journalism. This was an assault on press freedom that should make every reporter shudder no matter their opinion on the NSA.

The message was sent. It gave a whole new meaning to "Miranda rights". A Miranda warning, in effect.

Perhaps worse, we learned a few days later that the United States had been given a "heads up" by their British counterparts that they were planning on detaining Miranda. The US government didn't lift a finger to stop this blatant attack on journalism and press freedom – even as it has been moving heaven and earth to bring Edward Snowden back to the US. That should be a scandal in its own right.

Now, the US owes its citizens and the international community another "heads up": on whether the United States will do the same to journalists working on NSA stories who are entering the United States. Put simply, will Attorney General Eric Holder, the US State Department, and the FBI promise safe passage to journalists, their spouses and loved ones, and vow not to interfere with their reporting on these NSA stories?

So far, the answer has been far from clear.

Glenn Greenwald and Laura Poitras, the two American journalists at the center of these stories, have been doing their reporting from Brazil and Germany respectively. The US government has not, so far, stated publicly whether they can enter the country without receiving the same outrageous treatment that Miranda received. Or worse.

Can they practice journalism in the United States, without their hard drives being confiscated, without an unconstitutional search-and-seizure taking place at the border? Are they free to enter the United States without being served a subpoena, or even jailed? Unlike the UK, the United States is supposed to be bound by the first amendment of the constitution, which exists to bar such treatment of journalists.

She's not alone. Jacob Appelbaum, a security researcher, a Tor developer and journalist in his own right, has been harassed while going over the border for years, simply by virtue of his association with WikiLeaks, whose "crime", apparently, is publishing government secrets in the public interest – something we know established newspapers do all the time.

I should note that I consider both Glenn and Laura friends, as we all sit on the board of the Freedom of the Press Foundation (FPF) together. But the reason this should concern not only me and the FPF, but everyone in the US, is not because of any specific people; we must look at these assaults from a broader perspective.

We care about the individual journalists under attack – Greenwald, Poitras, Appelbaum, Miranda, Julian Assange, James Risen – and the whistleblowers themselves – Snowden, Thomas Drake, John Kiriakou, Chelsea Manning, Julia Davis, Russ Tice – in all these fights. But it's not just the risk and courage of the individuals that inspire and call us to action.

We recognize that when the individual rights are being violated, that means my rights, our rights, are being violated too. What happens to individuals in the US happens to the first amendment. Our politicians must have forgotten the basics we all learned in high school civics class.

That's what the FPF was founded for: we needed a movement protecting the first amendment in its broadest reach.

I've been waiting 40 years for Edward Snowden, and his revelations are the most important in US history, including the Pentagon Papers.

Despite the importance of his revelations, the US purposefully stranded Snowden in Russia by canceling his passport while he was in transit from Hong Kong to Russia, essentially forcing him into exile.

We already know the government will attempt to intimidate and crush whistleblowers who challenge national security state orthodoxy. Genuflect and get in line – or pay the heavy cost. Look no further than Thomas Drake, Bill Binney, and J Kirk Wiebe, three NSA whistleblowers whose homes were raided and lives were destroyed for the cardinal sin of informing the American public about crimes committed by their government.

Not so in the US these days, it seems. Whether whistleblower, source or journalist: expose crimes, become the hunted. What must students think when they see some of the brightest minds – and the fiercest watchdogs – of a generation unable to practice journalism in America?

Hunter S Thompson once said:

History is hard to know, because of all the hired bullshit, but even without being sure of "history" it seems entirely reasonable to think that every now and then the energy of a whole generation comes to a head in a long fine flash, for reasons that nobody understands at the time– and which never explain, in retrospect, what actually happened.

He spoke of the end of something – a great wave and the attendant forces and counterforces at play. Now one can feel the rising tide and a see a new wave forming on the edge of the break. Perhaps, soon we can paraphrase the Good Doctor: and with the right kind of eyes almost see the high-water mark of the surveillance state… that place where the wave finally broke and rolled back.

If we want that moment, we need to stand with those brave enough to confront the crimes of our current national security state. Just two months before the UK gave the US its absurd "heads up" about David Miranda's detention, Eric Holder vowed not to prosecute journalists, saying:

The Department [of Justice] has not prosecuted, and as long as I'm attorney general, will not prosecute any reporter for doing his or her job.

That begs the question: will the attorney general, as chief law enforcement officer of the country, now go on record that he will guarantee the safe return and safe passage of journalists who have exercised their rights under the first amendment?

Or would we accept the creation of a generation of exiled watchdogs, who are trying to hold their government accountable from afar?

• This article received some minor editorial amendments at the request of the author, at 1pm (ET) on 18 September